Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.IColumn

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        {
            Row row = rows.get(0);

            if (row.cf != null)
            {
                IColumn col = row.cf.getColumn(keyCol);

                if (col != null)
                {
                    ByteBuffer idCol = col.getSubColumns().iterator().next().name();
                    Long id = Long.valueOf(ByteBufferUtil.string(idCol));
                    int shard = CassandraIndexManager.getShardFromDocId(id);
                    int sid = CassandraIndexManager.getShardedDocId(id);

                    ByteBuffer sidName = ByteBuffer.wrap(String.valueOf(sid).getBytes("UTF-8"));
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    protected IColumn computeNext()
    {
        if (i++ >= columns)
            return endOfData();

        IColumn column;
        try
        {
            file.reset(mark);
            column = emptyColumnFamily.getColumnSerializer().deserialize(file);
        }
        catch (IOException e)
        {
            throw new RuntimeException("error reading " + i + " of " + columns, e);
        }
        if (finishColumn.remaining() > 0 && comparator.compare(column.name(), finishColumn) > 0)
            return endOfData();

        mark = file.mark();
        return column;
    }
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            // columns
            int columns = in1.readInt();
            assert columns == in2.readInt();
            for (int i = 0; i < columns; i++)
            {
                IColumn c1 = cf1.getColumnSerializer().deserialize(in1);
                IColumn c2 = cf2.getColumnSerializer().deserialize(in2);
                assert c1.equals(c2);
            }
            // that should be everything
            assert in1.available() == 0;
            assert in2.available() == 0;
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        IColumnIterator iter = qf.getSSTableColumnIterator(reader);
        ColumnFamily cf = iter.getColumnFamily();
        while (iter.hasNext()) cf.addColumn(iter.next());
        assert cf.getColumn(ByteBufferUtil.bytes("colAA")).value().equals(hexToBytes("76616c4141"));
        assert !(cf.getColumn(ByteBufferUtil.bytes("colAA")) instanceof DeletedColumn);
        IColumn expCol = cf.getColumn(ByteBufferUtil.bytes("colAC"));
        assert expCol.value().equals(hexToBytes("76616c4143"));
        assert expCol instanceof ExpiringColumn;
        assert ((ExpiringColumn)expCol).getTimeToLive() == 42 && expCol.getLocalDeletionTime() == 2000000000;
    }
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        // Verify results
        SSTableReader reader = SSTableReader.open(Descriptor.fromFilename(tempSS.getPath()));
        QueryFilter qf = QueryFilter.getNamesFilter(Util.dk("rowA"), new QueryPath("Super4", null, null), ByteBufferUtil.bytes("superA"));
        ColumnFamily cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
        IColumn superCol = cf.getColumn(ByteBufferUtil.bytes("superA"));
        assert superCol != null;
        assert superCol.getSubColumns().size() > 0;
        IColumn subColumn = superCol.getSubColumn(ByteBufferUtil.bytes("colAA"));
        assert subColumn.value().equals(hexToBytes("76616c75654141"));
    }
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        out.writeInt(columnCount);

        Iterator<IColumn> iter = iterator();
        while (iter.hasNext())
        {
            IColumn column = iter.next();
            emptyColumnFamily.getColumnSerializer().serialize(column, out);
        }
    }
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        digest.update(headerBuffer.getData(), 0, headerBuffer.getLength());
        DataOutputBuffer out = new DataOutputBuffer();
        Iterator<IColumn> iter = iterator();
        while (iter.hasNext())
        {
            IColumn column = iter.next();
            out.reset();
            try
            {
                emptyColumnFamily.getColumnSerializer().serialize(column, out);
            }
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        }

        protected IColumn getReduced()
        {
            assert container != null;
            IColumn reduced = container.iterator().next();
            ColumnFamily purged = shouldPurge ? ColumnFamilyStore.removeDeleted(container, gcBefore) : container;
            if (purged == null || !purged.iterator().hasNext())
            {
                container.clear();
                return null;
            }
            container.clear();
            serializedSize += reduced.serializedSize();
            size++;
            return reduced;
        }
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        if (!hasNext())
        {
            throw new IllegalStateException("end of column iterator");
        }

        final IColumn column = deserializeNext();
        return new Entry<ByteBuffer, IColumn>()
        {
            public IColumn setValue(IColumn value)
            {
                throw new UnsupportedOperationException();
            }

            public IColumn getValue()
            {
                return column;
            }

            public ByteBuffer getKey()
            {
                return column.name();
            }
        };
    }
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    public IColumn next()
    {
        try
        {
            IColumn column = sstable.getColumnSerializer().deserialize(file, expireBefore);
            if (validateColumns)
                column.validateFields(sstable.metadata);
            return column;
        }
        catch (IOException e)
        {
            throw new IOError(e);
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Related Classes of org.apache.cassandra.db.IColumn

  • com.datastax.brisk.BriskDBUtil
  • com.netflix.aegisthus.io.sstable.SSTableScanner
  • io.teknek.intravert.action.impl.SliceAction
  • lucandra.cluster.CassandraIndexManager
  • org.apache.cassandra.avro.CassandraServer
  • org.apache.cassandra.cql.common.ColumnRangeQueryRSD
  • org.apache.cassandra.cql.common.UniqueKeyQueryRSD
  • org.apache.cassandra.cql3.Lists$Discarder
  • org.apache.cassandra.cql3.operations.ListOperation
  • org.apache.cassandra.cql3.statements.SelectStatement
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